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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Why does dired go through extra efforts to avoid unibyte names
Date: Wed, 03 Jan 2018 15:09:06 -0500	[thread overview]
Message-ID: <jwvmv1u7lmk.fsf-monnier+gmane.emacs.devel@gnu.org> (raw)
In-Reply-To: 83tvw3asgk.fsf@gnu.org

> Eight-bit-* characters are not in general modified by encoding them,
> so you could encode them any number of times and still get the same
> bytes as result.

Agreed.  But even if it were not the case, I don't see why that would
explain the presence of this code.

>> > As for the reason for using string-to-multibyte: maybe it's because we
>> > use concat further down in the function, which will determine whether
>> > the result will be unibyte or multibyte according to its own ideas of
>> > what's TRT?
>> But `concat` will do a string-to-multibyte for us, if needed
> Not if the other concatenated parts are ASCII (which tend to be
> unibyte strings).

But that's still perfectly fine as well since it will then result in
a unibyte string which will get "encoded" correctly.


        Stefan




  reply	other threads:[~2018-01-03 20:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-29 14:34 Why does dired go through extra efforts to avoid unibyte names Stefan Monnier
2017-12-29 19:17 ` Eli Zaretskii
2018-01-03  4:14   ` Stefan Monnier
2018-01-03 15:10     ` Eli Zaretskii
2018-01-03 20:09       ` Stefan Monnier [this message]
2018-01-05  9:10         ` Eli Zaretskii
2018-01-05 16:12           ` Stefan Monnier
2018-01-05 18:14             ` Eli Zaretskii

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